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Join our SkyWatch hosts for conversation highlighting news from the world of astronomy. Listen in via your computer or MP3 player as they bring the latest discoveries down to Earth. SkyWatch also includes HubbleWatch, a round-up of news from NASA’s Hubble Space Telescope.

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High tides happen every day, but some are higher than others. Some of the highest tides, called “perigean high tides,” occur when the Moon is closest to Earth in its monthly orbit. When coastal storms take place during these tides, major flooding can result.